fix(build): fix script to fix sem-ver

.travis.yml

@@ -2,6 +2,7 @@ language: node_js
 cache:
   directories:
     - ~/.npm
+    - node_modules
 notifications:
   email: false
 node_js:
@@ -14,19 +15,19 @@ branches:
     - /^greenkeeper.*$/
 
 before_install:
-  - ./scripts/run-on-node-version.sh "npm install -g greenkeeper-lockfile@1"
+  - ./scripts/run-on-node-version.sh 9 "npm install -g greenkeeper-lockfile@1"
 
 before_script:
-  - ./scripts/run-on-node-version.sh "greenkeeper-lockfile-update"
+  - ./scripts/run-on-node-version.sh 9 "greenkeeper-lockfile-update"
 
 script:
   - npm run verify
 
 after_success:
   - npm install -g travis-deploy-once@4
   - travis-deploy-once "npm run semantic-release"
-  - ./scripts/run-on-node-version.sh "npm install --no-save coveralls && npm run coveralls"
-  - ./scripts/run-on-node-version.sh "npm install --no-save codecov && npm run codecov"
+  - ./scripts/run-on-node-version.sh 9 "npm install --no-save coveralls && npm run coveralls"
+  - ./scripts/run-on-node-version.sh 9 "npm install --no-save codecov && npm run codecov"
 
 after_script:
-  - ./scripts/run-on-node-version.sh "greenkeeper-lockfile-upload"
+  - ./scripts/run-on-node-version.sh 9 "greenkeeper-lockfile-upload"

package.json

@@ -16,10 +16,8 @@
     "clean": "rimraf dist-es5 dist-es2015",
     "dc": "npm run dependency-check",
     "dependency-check": "dependency-check . --unused --no-dev -i flux-standard-action -i @types/fbemitter && dependency-check . --missing --no-dev",
-    "lint": "tslint -p tsconfig.json \"src/**/*.ts\"",
-    "prepare": "npm run build",
-    "postpublish": "git push",
-    "preversion": "git pull && npm run verify",
+    "lint": "tslint -p tsconfig.json 'src/**/*.ts'",
+    "prepublishOnly": "npm run build",
     "verify": "npm run lint && npm run coverage && npm run dependency-check",
     "coverage": "nyc npm test",
     "coveralls": "nyc report --reporter=text-lcov | coveralls",

scripts/run-on-node-version.sh

@@ -1,8 +1,23 @@
 #! /bin/bash
-latest_version=$(npm info node version);
+
+# Thanks to Night Train:
+# https://stackoverflow.com/questions/48250235/how-to-setup-travis-to-skip-script-on-particular-nodejs-version
+# https://docs.travis-ci.com/user/customizing-the-build/#Implementing-Complex-Build-Steps
+#
+# To use this, create this file (e.g. under scripts folder: ./scripts/run-on-node-version.sh)
+# and give it execution permission: chmod ugo+x scripts/run-on-node-version.sh
+# Then you can use it in CI configurations, e.g. .travis.yml:
+#   - ./scripts/run-on-node-version.sh latest "npm install --no-save coveralls && npm run coveralls"
+
+if [ $1 = 'latest' ]; then
+  target_version=$(npm info node version);
+else
+  target_version=$1;
+fi
 node_version=$(node -v);
-if [ ${node_version:1:1} = ${latest_version:0:1} ]; then
-  eval $1;
+if [ ${node_version:1:1} = ${target_version:0:1} ]; then
+  echo "Detected ${node_version}, satisfying ${target_version}. Executing command";
+  eval $2;
 else
-  echo "NodeJS ${node_version} instead of latest (${latest_version:0:1}) is detected. Skipping command";
+  echo "NodeJS ${node_version} instead of latest (${target_version:0:1}) is detected. Skipping command";
 fi